TI-92: Power loss while not in use.

Most motors use a start capacitor to create phase shift to get motor turning. So i would think once in motion it will continue to turn.
Now having said that what keeps fan turning! The system relies on electromagnets which pull the motor into next section ( think of a cut pie with separation between slices).
So what can cause this sequence to stop.
1. You have a quick loss of power.
2. You have a motor thermocouple (prevents burn out at a raised temperature)
since it restarts, although you mentioned after 4-5 hours of running, there was no mention how long it sat off. I would think this is not problem.
Power loss! Do lights flicker when AC comes on?
is the on off switch a pull chain or wall-switch?
If a flicker then power might be interrupted just as the fan motor has rotated in to pie slice dead zone. Which means slim that all flickers would effect, but could.
A wall switch can build up resistance or have poor contacts that by way of vibration lose power for a split second.
Remember cap.is used to start, so follow the path for quick power loss.
Also check connections at fan to wiring, a loose connection can open due to vibration, then settle down when off

You may have bad capacitors on the power supply. Replace capacitors or buy new power supply.

You are using too much power over that period of time. Sure you have nothing else connected to it? If not, then something in your motor ignition circuit is drawing excessive power - not enough to short out battery but enough to drain it prematurely. Igniter? Ignition electronics, if any?

Check the timing chain. Some times the chain will shift with worn teeth and get out of synch. This will cause the engine to lose power and back fire. Sometimes with a flame through the carb. I did that one once. Easy fix if it is the problem.

Most likely capacitors failing on the camera process board. They can also cause no picture, dark picture and sync loss. I use freeze spray to try to make the symptoms happen and heat to bring try to isolate it to an area. It's not so easy to change the capacitors if you do find which one (s) though.

I think you have a bad capacitor in the power supply circuit. You need to have a certified technician look at it though. Get someone who is familiar with mitsu's though. Have a great day. Jay

bad alternator or battery possibly

Check the connections on the battery,It sounds like one or both may be loose.

Check the fuel filter it may be blocked.

change the fuel pump/ or maby just the filter, and clean out the throttle body and air filter